Real Time Selenium Interview Questions
Ultimate List of Real Time Selenium Interview Questions
Real Time Selenium Interview Questions
Real time Selenium interview questions are those that are commonly asked during an actual job interview for a Selenium testing position. These questions are focused on evaluating the candidate's technical skills, knowledge, and experience with using Selenium to automate web applications. The questions may cover topics such as test automation frameworks, programming languages, debugging and troubleshooting, test management tools, and best practices for writing efficient and effective Selenium tests. The purpose of these questions is to assess the candidate's ability to apply their skills in a real-world scenario and determine if they are a good fit for the role.
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1 - What is Selenium?
Selenium is an open source automation testing tool used for automating web applications. It provides a suite of tools to automate web browsers and supports various programming languages such as Java, Python, C#, and Ruby.
2) What are the advantages of using Selenium?
Some of the advantages of using Selenium are:
Selenium supports multiple languages and thus can be easily used by developers with different backgrounds.
It is open source and free to use, reducing the cost of testing.
It supports parallel test execution, allowing faster testing.
Selenium supports cross browser testing, ensuring the compatibility of applications across different browsers.
It is highly customizable and flexible, enabling testers to meet specific testing requirements.
3) What are the different components of Selenium?
Selenium has multiple components, including:
Selenium IDE: A record and playback tool used for testing.
Selenium WebDriver: A tool for automated testing using programming languages.
Selenium Grid: Used for parallel test execution on multiple machines or browsers.
Selenium RC: Depreciated component that acts as a bridge between Selenium WebDriver and the browser.
4) What are the different types of locators supported by Selenium WebDriver?
Selenium WebDriver supports the following locators:
i) ID
ii) Name
iii) Class Name
iv) Tag Name
v) Link Text
vi) Partial Link Text
vii) CSS Selector
viii) XPath
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5) What is the difference between assert and verify in Selenium?
An ‘assert’ command verifies whether a specific condition is true or false. If it is true, the test continues to execute. If false, the test fails, and the execution stops.
A ‘verify’ command also performs a check, but if the condition fails, the test will continue to execute.
6) What are the different types of waits in Selenium?
Selenium has three types of waits:
Implicit Wait: Sets a timeout for all web elements and waits for it to appear before performing any action.
Explicit Wait: Waits for a specific web element to appear or disappear before proceeding.
Fluent Wait: A flexible wait that can define the maximum amount of time to wait for a web element to appear or disappear.
7) How can you handle multiple windows in Selenium?
To handle multiple windows in Selenium, we can use the Window Handling methods, such as getWindowHandle(), getWindowHandles(), switchTo(), and close().
8) What is the difference between Absolute and Relative XPath?
Absolute XPath is the complete path of an element from the root node, while relative XPath is a shorter version of the Absolute XPath with a unique path from the current node.
9) What is a Framework in Selenium?
A Framework in Selenium is a set of guidelines and practices used to organize test scripts, test data, and other resources. It helps to maintain consistency, reusability, and scalability in test automation.
10) How can you handle dynamic web elements in Selenium?
To handle dynamic web elements, we can use XPath with regular expressions or use the ByLocator class in Selenium.
11) How can you interact with a dropdown list in Selenium?
We can interact with a dropdown list in Selenium using the Select class, which provides methods to select an option by visible text, index, or value. We can also use the getOptions() method to get all the options from a dropdown list and perform actions on specific options.
12) What is TestNG in Selenium?
TestNG is a testing framework for Java used to perform unit, functional, and integration testing. It provides annotations, parametrization, and reporting features to write and execute test cases in an organized manner.
13) How can we handle SSL certificates in Selenium?
To handle SSL certificates in Selenium, we can use the DesiredCapabilities class to create a custom profile and set the ‘acceptSslCerts’ capability to true.
14) How can you perform mouse and keyboard actions in Selenium?
Selenium provides the Actions class to perform mouse and keyboard actions. We can use the moveToElement(), clickAndHold(), release(), dragAndDrop() methods, among others, to simulate mouse actions. For keyboard actions, we can use the sendKeys() method.
15) What are the common exceptions in Selenium?
Some of the common exceptions in Selenium are:
NoSuchElementException: Occurs when an element is not found.
NoSuchFrameException: Occurs when a frame is not found.
TimeoutException: Occurs when a timeout is reached.
StaleElementReferenceException: Occurs when an element is no longer attached to the DOM.
16) How can we capture screenshots in Selenium?
To capture screenshots in Selenium, we can use the TakesScreenshot interface, which provides the getScreenshotAs() method. We can also use third party libraries like AShot or ScreenshotTaker for more advanced screenshot capture options.
17) How do you handle pop ups in Selenium?
We can handle pop ups in Selenium using the Alert interface's methods, such as accept(), dismiss(), and getText(). We can also use the switchTo() method to switch the driver's focus to the pop up window.
18) What are the different testing types supported by Selenium?
Selenium supports the following types of testing:
Functional testing
Regression testing
Integration testing
Cross browser testing
Data driven testing
Parallel testing
19) How can we integrate Selenium with other tools?
Selenium can be integrated with other tools such as Maven, Jenkins, and TestNG using their dependencies in the project's pom.xml file. It can also be integrated with popular IDEs like Eclipse and Visual Studio for easier automation.
20) What is Page Object Model (POM) in Selenium?
Page Object Model is a design pattern used in Selenium to create a separate class for each page of the application. It helps to keep the tests clean, reduce code duplication, and make maintenance easier in Selenium projects.
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